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Dear all,<br>
Further to my email below I wondered if it were possible to use cleanline on 0.1Hz high pass filtered data or does it need to be 1Hz?
<br>
Is there any issue if you use cleanline after low pass filtering to remove line noise still present in the data?<br>
Best wishes,<br>
Jumana <br>
------------------------------------------<br>
Jumana Ahmad<br>
Post-Doctoral Research Worker in Cognitive Neuroscience<br>
EU-AIMS Longitudinal European Autism Project (LEAP) & SynaG Study<br>
Room M1.26.Department of Forensic and Neurodevelopmental Sciences (PO 23) | Institute of Psychiatry, Psychology & Neuroscience | King’s College London | 16 De Crespigny Park | London SE5 8AF<br>
<br>
Phone: 0207 848 5359| Email: jumana.ahmad@kcl.ac.uk | Website: www.eu-aims.eu | Facebook: www.facebook.com/euaims<br>
<br>
<hr style="display:inline-block;width:98%" tabindex="-1">
<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Ahmad, Jumana<br>
<b>Sent:</b> 24 January 2017 17:00:25<br>
<b>To:</b> eeglablist@sccn.ucsd.edu<br>
<b>Subject:</b> high frequency oscillation- eeg advice </font>
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<div class="WordSection1">
<p class="MsoNormal">Hi Everyone,<o:p></o:p></p>
<p class="MsoNormal">I am running a large scale ERP analysis. I filtered 1-40Hz (ICA AMICA), or 0.1-40Hz for the ERP dataset. A 30Hz low pass does not help to get rid of the oscillation, which is really significant in the data. I use a butterworth filter, which
is good for ERP analysis with low phase distortion. <o:p></o:p></p>
<p class="MsoNormal">I also already run ICA, but in some datasets there is a very significant high frequency oscillation.<o:p></o:p></p>
<p class="MsoNormal">I do not use cleanline, which is not typical in the literature I have been basing my pipeline on.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">However, I can see the high frequency oscillations in my ERP, which is not ideal and now I need to try and get rid of it further.
<o:p></o:p></p>
<p class="MsoNormal">Can I filter again on top of the data which already has already undergone ICA- I only use ICA to remove blinks?<o:p></o:p></p>
<p class="MsoNormal">Should I do cleanline, although it would have to be after ICA now- I read this is not advisable.<o:p></o:p></p>
<p class="MsoNormal">Should I use a notch filter?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Any help would be appreciated.<o:p></o:p></p>
<p class="MsoNormal">Best wishes,<o:p></o:p></p>
<p class="MsoNormal">Jumana <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="background:white"><b><span style="font-size:10.0pt;color:#1F497D;mso-fareast-language:EN-GB">------------------------------------------</span></b><span style="font-family:"Helvetica",sans-serif;color:black;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><b><span style="font-size:10.0pt;color:#1F497D;background:#FFEE94;mso-fareast-language:EN-GB">Jumana Ahmad</span></b><span style="font-family:"Helvetica",sans-serif;color:black;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;color:#1F497D;mso-fareast-language:EN-GB">Post-Doctoral Research Worker in Cognitive Neuroscience </span><span style="font-family:"Helvetica",sans-serif;color:black;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><i><span style="font-size:10.0pt;color:#1F497D;mso-fareast-language:EN-GB">EU-AIMS Longitudinal European Autism Project (LEAP) & SynaG Study</span></i><span style="font-family:"Helvetica",sans-serif;color:black;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;color:#1F497D;mso-fareast-language:EN-GB">Room M1.09. Department of Forensic and Neurodevelopmental Sciences (PO 23) | Institute of Psychiatry, Psychology & Neuroscience | King’s College
London | 16 De Crespigny Park | London SE5 8AF</span><span style="font-family:"Helvetica",sans-serif;color:black;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;color:#1F497D;mso-fareast-language:EN-GB"> </span><span style="font-family:"Helvetica",sans-serif;color:black;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><b><span style="font-size:10.0pt;color:#1F497D;mso-fareast-language:EN-GB">Phone:</span></b><span style="font-size:10.0pt;color:#1F497D;mso-fareast-language:EN-GB"> </span><span lang="EN-US" style="font-size:10.0pt;color:navy;mso-fareast-language:EN-GB">0207848
0260</span><span style="font-size:10.0pt;color:#1F497D;mso-fareast-language:EN-GB">| <b>Email:</b> <span style="background:#FFEE94">jumana.ahmad</span></span><span style="color:black;mso-fareast-language:EN-GB"><a href="mailto:antonia.sanjose@kcl.ac.uk" target="_blank"><span style="font-size:10.0pt;color:purple">@kcl.ac.uk</span></a></span><span style="font-size:10.0pt;color:#1F497D;mso-fareast-language:EN-GB"> | <b>Website:</b> </span><span style="color:black;mso-fareast-language:EN-GB"><a href="http://www.eu-aims.eu/" target="_blank"><span style="font-size:10.0pt;color:purple">www.eu-aims.eu</span></a></span><span style="font-size:10.0pt;color:#1F497D;mso-fareast-language:EN-GB"> | <b>Facebook:</b> </span><span style="color:black;mso-fareast-language:EN-GB"><a href="http://www.facebook.com/euaims" target="_blank"><span style="font-size:10.0pt;color:purple">www.facebook.com/euaims</span></a></span><span style="font-family:"Helvetica",sans-serif;color:black;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;color:#1F497D;mso-fareast-language:EN-GB">***************************************************************************************<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;color:#1F497D;mso-fareast-language:EN-GB">We are currently looking for volunteers with mild intellectual disability to be part of our exciting and world-leading European project into brain development and
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